By reading the instructions carefully, (A) mistakes on the examination (B) can (C)

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Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

By reading the instructions carefully, (A) mistakes on the examination (B) can (C) be avoided.(D)

By reading the instructions carefully

on the examination

can

avoided

Giải thích

Sai ở “By reading the instructions carefully” vì mistakes không thể thực hiện hành động read được. Câu này có thể sửa thành “Reading the instructions carefully and mistakes on the examination can be avoided.”